import turtle
import time

# 设置画笔的初始位置
turtle.penup()
turtle.goto(-100, 0)
turtle.pendown()

# 绘制正方形
for _ in range(4):
    turtle.forward(100)
    turtle.right(90)

# 抬起画笔并暂停
turtle.penup()
time.sleep(20)